Update to Jan 30, 2015 version of gtfs-realtime.proto.
Update to Jan 30, 2015 version of gtfs-realtime.proto.

ccarse/gtfs-realtime-bindings,ccarse/gtfs-realtime-bindings,ccarse/gtfs-realtime-bindings,ccarse/gtfs-realtime-bindings,ccarse/gtfs-realtime-bindings